Prepared by A-J | Author brand: 盡職生活｜阿J的普通人理財筆記
About the author/site · Vocus @WUCJ ↗ · Editorial policy
Page version: 2026-08-16 | Official or primary sources are preferred for material rules and figures. AI may assist structure, translation, and code, but is not used as the sole factual source.
About the author/site · Vocus @WUCJ ↗ · Editorial policy
Page version: 2026-08-16 | Official or primary sources are preferred for material rules and figures. AI may assist structure, translation, and code, but is not used as the sole factual source.
Beginner principle: Understand the mechanics and risks before buying. Knowing orders, settlement, and costs matters more than finding a hot tip.
Separate household cash from investment capital
Rent, mortgage payments, near-term spending, and emergency reserves should not depend on favorable market prices.
Concentration magnifies mistakes
A 30% decline has very different household consequences when a position is 5% versus 70% of investable assets.
Staging purchases is more realistic than predicting the bottom
Market bottoms cannot be known in advance. Staged contributions and diversification reduce single-timing and single-company risk.
Treat leverage as a separate risk source
Margin, stock-backed loans, and borrowed investing add interest, collateral-call, and forced-sale risks beyond normal market exposure.
What to learn next
- No account yet: start with the account-opening guide
- Planning to buy ETFs: learn fund structure and premiums/discounts
- Considering leverage: first understand margin and stock-backed borrowing risks
Primary / official sources
General investing education only. Market rules and fees can change; use current exchange, regulator, and broker disclosures.